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The following functions will sort the elements of an array or vector,
either directly or indirectly. They are defined for all real and integer
types using the normal suffix rules. For example, the float
versions of the array functions are gsl_sort_float
and
gsl_sort_float_index
. The corresponding vector functions are
gsl_sort_vector_float
and gsl_sort_vector_float_index
. The
prototypes are available in the header files `gsl_sort_float.h'
`gsl_sort_vector_float.h'. The complete set of prototypes can be
included using the header files `gsl_sort.h' and
`gsl_sort_vector.h'.
There are no functions for sorting complex arrays or vectors, since the
ordering of complex numbers is not uniquely defined. To sort a complex
vector by magnitude compute a real vector containing the the magnitudes
of the complex elements, and sort this vector indirectly. The resulting
index gives the appropriate ordering of the original complex vector.
- Function: void gsl_sort (double * data, size_t stride, size_t n)
-
This function sorts the n elements of the array data with
stride stride into ascending numerical order.
- Function: void gsl_sort_vector (gsl_vector * v)
-
This function sorts the elements of the vector v into ascending
numerical order.
- Function: int gsl_sort_index (size_t * p, const double * data, size_t stride, size_t n)
-
This function indirectly sorts the n elements of the array
data with stride stride into ascending order, storing the
resulting permutation in p. The array p must be allocated to
a sufficient length to store the n elements of the permutation.
The elements of p give the index of the array element which would
have been stored in that position if the array had been sorted in place.
The array data is not changed.
- Function: int gsl_sort_vector_index (gsl_permutation * p, const gsl_vector * v)
-
This function indirectly sorts the elements of the vector v into
ascending order, storing the resulting permutation in p. The
elements of p give the index of the vector element which would
have been stored in that position if the vector had been sorted in
place. The first element of p gives the index of the least element
in v, and the last element of p gives the index of the
greatest element in v. The vector v is not changed.
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